Saline-alkali soil improvement equipment and improvement method

Abstract

The invention relates to the technical field of saline-alkali soil improvement equipment, in particular to saline-alkali soil improvement equipment and an improvement method.The saline-alkali soil improvement equipment comprises a rack and a soil turning roller, hydraulic telescopic assemblies are installed on the left side and the right side of the rack correspondingly, and the soil turning roller is installed below the rack through the hydraulic telescopic assemblies; a soil crushing box capable of sliding front and back is installed at the bottom end of the rack, the soil crushing box is provided with a forward opening and a downward opening, the front end of the soil crushing box is rotationally connected with a conveying frame, the front end of the conveying frame is rotationally connected with the soil turning roller, and a conveying belt assembly is installed on the conveying frame; the invention aims to solve the problems that when existing saline-alkali soil improvement equipment lifts soil blocks, a cylinder structure is used, dead corners without land improvement are left on the edge of a land parcel during land improvement, more time and energy are needed to complete the same workload, and use is inconvenient.

Description

Technical Field

[0001] The invention relates to the technical field of saline-alkali land improvement equipment, and in particular to saline-alkali land improvement equipment and an improvement method. Background Art

[0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. The formation of alkaline soil and alkaline soil is mostly related to the accumulation of carbonates in the soil. Therefore, the alkalinity is generally high. This kind of soil is not suitable for the growth of most crops. The current method of improving saline-alkali land is mainly through organic fertilizers. First, according to the properties of the soil and the needs of plants, choose a suitable organic fertilizer formula, and then apply organic fertilizers selectively according to the demand of the soil. After applying organic fertilizers, you can use land improvement, plowing and other methods to make the organic fertilizer and soil fully mixed, promote microbial activity, and improve soil structure.

[0003] Publication No.: CN117223422B discloses a saline-alkali land improvement device and method, which relate to the technical field of agricultural machinery. The device comprises a vehicle body and a plurality of legs arranged at the lower end thereof, a walking wheel being provided at the lower end of each leg, the walking wheel being connected to a walking motor for driving the rotation thereof, a crushing component for crushing and lifting the soil being further provided on the vehicle body, the soil blocks being crushed by the crushing component, an installation notch being provided at the rear of the vehicle body, a conveyor belt for conveying the soil blocks being provided at the position of the installation notch, the input end of the conveyor belt being connected to the conveying motor, the present invention is designed in view of existing needs, can realize excavation and crushing of soil at different depths, can crush the excavated soil blocks, spread the crushed soil blocks flat, and evenly add a medicine to the spread soil blocks, so that the medicine and the soil blocks are fully mixed, thereby ensuring the repair effect.

[0004] The above-mentioned saline-alkali land improvement equipment uses a cylinder structure when lifting soil blocks. Since fields are usually square, the cylinder structure moves on the fields, leaving unimproved dead corners at the edges of the fields during land improvement. This requires more moving movements of the equipment to improve the remaining dead corners, and requires more time and energy to complete the same amount of work, which is inconvenient to use. Summary of the invention

[0005] The purpose of the present invention is to provide a saline-alkali land improvement device and an improvement method to solve the problem that the existing saline-alkali land improvement equipment uses a cylindrical structure when lifting soil blocks, resulting in dead corners at the edge of the land blocks that are not improved when improving the land, requiring more time and energy to complete the same amount of work, and being inconvenient to use.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A saline-alkali land improvement equipment comprises a frame and a soil-turning roller, wherein hydraulic telescopic components are installed on both sides of the frame, and the soil-turning roller is installed below the frame through the hydraulic telescopic components, and a soil crushing box that can slide forward and backward is installed at the bottom of the frame, and the soil crushing box has a forward opening and a downward opening, and the front end of the soil crushing box is rotatably connected to a conveying frame, and the front end of the conveying frame is rotatably connected to the soil-turning roller, and a conveyor belt assembly is installed on the conveying frame.

[0008] Preferably, a joint block is fixedly connected to the top of the soil crushing box, a first slideway for the joint block to move forward and backward is provided on the surface of the frame, and a stop rod assembly for limiting the backward movement of the joint block is installed on the surface of the joint block.

[0009] Preferably, a soil crushing assembly is provided in the soil crushing box, a mixing box is fixedly installed at the lower end of the soil crushing box, the inner cavity of the mixing box is communicated with the opening at the lower end of the soil crushing box, and a switchable discharge plate is installed at the bottom of the mixing box.

[0010] Preferably, a reagent storage box is installed on the upper surface of the frame, and a reagent delivery pipe is connected between the reagent storage box and the mixing box, and the reagent delivery pipe communicates the internal space of the reagent storage box and the mixing box.

[0011] Preferably, there are multiple soil crushing components, which are evenly spaced in the soil crushing box. The soil crushing components include a soil breaking shaft and multiple soil crushing slurries. The multiple soil crushing slurries are evenly spaced and installed on the surface of the soil breaking shaft. The surface of the frame is provided with a third slide for the soil breaking shaft to move.

[0012] Preferably, the top of each earth-breaking shaft is coaxially fixedly connected with a fourth bevel gear, the surface of the combining block is rotatably connected with a linkage shaft, the surface of the linkage shaft is coaxially fixedly connected with a plurality of third bevel gears, and the number of the third bevel gears corresponds one-to-one to the number of the fourth bevel gears, and each of the third bevel gears is meshingly connected with a fourth bevel gear.

[0013] Preferably, a combined plate is fixedly connected to the surface of the combined block, each of the earth-breaking shafts movably penetrates the surface of the combined plate, and a second slideway for the combined plate to slide forward and backward is provided on the surface of the frame.

[0014] A saline-alkali land improvement method is carried out using the saline-alkali land improvement device, and the specific steps are as follows:

[0015] A. By rotating the soil turning roller and then starting the hydraulic telescopic assembly to extend, the soil turning roller is driven downward into the soil, and then the saline-alkali land improvement equipment is moved to deep-turn the soil layer of the field;

[0016] B. The conveyor belt assembly transmits the soil turned over by the soil turning roller into the soil crushing box, and the soil blocks in the soil crushing box are broken into smaller soil blocks by starting the soil crushing assembly in the soil crushing box;

[0017] C. Small soil lumps fall from the lower opening of the soil crushing box into the mixing box, and the improver in the storage box flows into the mixing box through the agent delivery pipe, and the small soil lumps in the mixing box are mixed with the improver;

[0018] D. Open the opening at the bottom of the mixing box to allow small pieces of soil mixed with the amendment to fall back into the field.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The conveyor frame and conveyor belt assembly are provided to better meet the needs of lifting soil blocks in large fields, so that when the equipment travels back and forth in the fields, it can avoid leaving dead corners in one trip. The hydraulic telescopic assembly can be provided to adjust the height of the soil turning roller to meet the needs of turning soil at different depths. The two ends of the conveyor frame are rotatably connected to the soil turning roller and the soil crushing box respectively, so that when the height of the soil turning roller is adjusted, the conveyor frame can rotate accordingly. Since the soil crushing box can move left and right, it can also automatically adjust its position according to the height of the soil turning roller and the rotation of the conveyor frame.

[0021] 2. When the height of the soil turning roller is determined, the lever assembly is opened to limit the backward movement of the joint block, thereby limiting the upward movement of the soil turning roller. This is beneficial for the hydraulic telescopic rod to resist the reaction force from the soil layer to prevent the position of the soil turning roller from changing when the soil turning roller encounters a harder soil layer.

[0022] 3. By setting up multiple soil crushing components, a larger crushing area can be covered, so that soil blocks in different positions can be fully crushed, and all the soil crushing components can be operated by only controlling the rotating linkage shaft, which is conducive to conveniently controlling the start and stop of the soil crushing components. And because only the rotation of the linkage shaft needs to be controlled, the number of motors required is reduced, thereby reducing the number of electrical equipment such as drivers and controllers, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the connection state of the soil turning roller, the conveying frame and the soil crushing box of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the conveying frame of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the soil crushing box of the present invention;

[0027] Figure 5 It is a schematic structural diagram of a vertical section of a soil crushing box of the present invention;

[0028] Figure 6 For the present invention Figure 5 The enlarged view of point A in the middle;

[0029] Figure 7 It is a schematic structural diagram of a vertical section of a threaded sleeve of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the vertical section of the combined block of the present invention;

[0031] Fig. 9 It is a schematic diagram of the connection state of the frame, the joint block and the combined board of the present invention;

[0032] Fig.10 It is a schematic structural diagram of a vertical section of a frame of the present invention;

[0033] Fig.11 It is a partial top sectional view of the frame of the present invention;

[0034] Fig.12 It is a schematic structural diagram of a vertical section of a fixed sleeve and a telescopic sleeve of the present invention.

[0035] In the figure: 1, frame; 2, fixed sleeve; 3, telescopic sleeve; 4, connecting ring; 5, first motor; 6, soil turning roller; 7, conveyor frame; 8, conveyor belt; 9, second motor; 10, limit ring; 11, arc chute; 12, soil crushing box; 13, joint block; 14, first slideway; 15, third motor; 16, first flat gear; 17, second flat gear; 18, threaded sleeve; 19, threaded groove; 20, threaded top rod; 21, limit chute; 22, fourth motor; 23, first bevel gear; 24. Second bevel gear; 25. Linkage shaft; 26. Third bevel gear; 27. Fourth bevel gear; 28. Ground-breaking shaft; 29. ​​Screw conveyor roller; 30. Mixing shaft; 31. Mixing box; 32. Discharge plate; 33. Combination plate; 34. Rolling shaft; 35. Second slideway; 36. Third slideway; 37. Embedded groove; 38. Protective cover; 39. Agent storage box; 40. Agent delivery pipe; 41. Electric valve; 42. Front baffle; 43. Hydraulic telescopic rod; 44. Fifth motor; 45. Limit slider. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 12 , the present invention provides a technical solution.

[0038] A saline-alkali land improvement equipment includes a frame 1 and a soil-turning roller 6. Hydraulic telescopic components are installed on the left and right sides of the frame 1. The soil-turning roller 6 is installed below the frame 1 through the hydraulic telescopic components. For example, a fixed sleeve 2 is fixedly connected to the left and right sides of the frame 1. A telescopic sleeve 3 that can be telescopically slid is movably installed at the bottom end of the fixed sleeve 2. A connecting ring 4 is fixedly connected to the bottom end of the telescopic sleeve 3. A hydraulic telescopic rod 43 is installed in the fixed sleeve 2, and the telescopic end of the hydraulic telescopic rod 43 is fixedly connected to the telescopic sleeve 3. The connecting ring 4 and the soil-turning roller 6 are rotatably connected. The telescopic sleeve 3 is telescopically slidable by starting the hydraulic telescopic rod 43. The telescopic sleeve 3 is telescopically moved to drive the connecting ring 4 to move. The movement of the connecting ring 4 drives the soil-turning roller 6 to move, so that the height of the soil-turning roller 6 can be adjusted, which is conducive to adjusting the depth of deep plowing according to needs. Please refer to Figure 1 and Fig.12 The connecting ring 4 is movably mounted on the soil-turning roller 6, so that the soil-turning roller 6 will move with the connecting ring 4 and can rotate itself. Furthermore, a first motor 5 is fixedly installed on the surface of the connecting ring 4, and the output end of the first motor 5 is coaxially fixedly connected to the soil-turning roller 6. The soil-turning roller 6 is driven to rotate by starting the first motor 5. A soil crushing box 12 that can slide back and forth is installed at the bottom end of the frame 1. The soil crushing box 12 has a forward opening and a downward opening. The forward opening is used for soil blocks to enter the soil crushing box 12, and the downward opening is used for soil blocks to move out of the soil crushing box 12. The front end of the soil crushing box 12 is rotatably connected to a conveying frame 7, and the front end of the conveying frame 7 is rotatably connected to the soil-turning roller 6. The conveying frame 7 is a U-shaped structure, and a conveyor belt assembly is installed on the conveying frame 7. The conveyor belt assembly includes a transmission belt 8, a second motor 9, an active roller and a driven roller. The machine 9 is installed on the conveying frame 7, and its output shaft is coaxially fixedly connected with the active roller. The driven roller and the active roller are located at both ends of the inner circle of the conveying belt 8. The driven roller and the active roller are rotatably connected to the conveying frame 7. The conveying assembly is used to convey the soil blocks to the direction of the soil crushing box 12. Therefore, the rear end of the conveying assembly is located at the front opening of the soil crushing box 12. The soil breaking knife on the surface of the soil turning roller 6 is in the shape of a shovel. The soil turning roller 6 rotates clockwise when working. During the rotation, it will shovel the soil blocks and apply force to the push blocks, so that the soil blocks perform centrifugal motion and fly onto the conveying belt 8. Furthermore, a front baffle 42 is fixedly installed at the lower end of the frame 1. The front baffle 42 is located in front of the soil turning roller 6. By setting the front baffle 42, the number of soil blocks flying to the front end can be prevented, and the soil blocks broken by the soil turning roller 6 can be prevented from accumulating at the front end of the device, resulting in a situation where the working intensity gradually increases.

[0039] By setting up the conveying frame 7 and the conveyor belt assembly, it is more in line with the demand for lifting soil blocks in large fields, so that when the equipment travels back and forth in the field, it avoids leaving dead corners in one trip, and by setting up a hydraulic telescopic assembly, the height of the soil-turning roller 6 can be adjusted to adapt to the soil-turning needs of different depths, and the two ends of the conveying frame 7 are rotatably connected to the soil-turning roller 6 and the soil crushing box 12, so that when the soil-turning roller 6 adjusts its height, the conveying frame 7 can rotate accordingly, so that it can adapt to the height of the soil-turning roller 6. Since the soil crushing box 12 can move left and right, it can also adjust its position according to the height of the soil-turning roller 6 and the rotation of the conveying frame 7. For example, when the soil-turning roller 6 moves downward, the conveying frame 7 rotates counterclockwise, and the soil crushing box 12 moves forward. Conversely, when the soil-turning roller 6 moves upward, the conveying frame 7 rotates clockwise, and the soil crushing box 12 moves backward.

[0040] A limiting ring 10 is fixedly connected to the surface of one side of the conveying frame 7 close to the soil crushing box 12, and an arc-shaped slide groove 11 is provided on the surface of the soil crushing box 12 for the limiting ring 10 to rotate and move. By arranging the limiting ring 10 in the arc-shaped slide groove 11, the conveying frame 7 and the soil crushing box 12 are facilitated to be firmly connected.

[0041] A connecting block 13 is fixedly connected to the top of the soil crushing box 12, and a first slideway 14 is provided on the surface of the frame 1 for the connecting block 13 to move forward and backward. A stop rod assembly that can limit the backward movement of the connecting block 13 is installed on the surface of the connecting block 13. When the height of the soil turning roller 6 is adjusted, the soil crushing box 12 and the connecting block 13 will move forward and backward. At this time, the stop rod assembly is closed to release the restriction on the connecting block 13. When the height of the soil turning roller 6 is determined, the stop rod assembly is opened to limit the backward movement of the connecting block 13. In this case, when the soil turning roller 6 encounters a harder soil layer, the hydraulic telescopic rod 43 will be subjected to a reaction force from the soil layer. In order to prevent shrinkage, the hydraulic telescopic rod 43 needs to resist this force to prevent the position of the soil turning roller 6 from changing. Limiting the backward movement of the connecting block 13 by opening the stop rod assembly is conducive to limiting the upward movement of the soil turning roller 6, thereby helping the hydraulic telescopic rod 43 to resist the reaction force from the soil layer.

[0042] Furthermore, the lever assembly includes a threaded sleeve 18 and two threaded push rods 20, the two threaded push rods 20 are coaxially arranged at the two ends of the threaded sleeve 18, the threaded sleeve 18 and the joint block 13 are rotatably connected, and the two ends of the threaded sleeve 18 are cooperated to open a thread groove 19 for threaded connection of the threaded push rods 20, and the thread setting requirements of the threads on the inner walls of the two threaded grooves 19 and the threads on the surfaces of the two threaded push rods 20 are that when the threaded sleeve 18 is rotated clockwise, the two threaded push rods 20 are extended outward, and when the threaded sleeve 18 is rotated counterclockwise, the two threaded push rods 20 are retracted inward, and the two threaded push rods 20 can extend to the outside of the joint block 13 when extending outward, that is, the surface of the joint block 13 has a through hole for the threaded push rods 20 to extend, and the wall surface of the first slide 14 is cooperated to open an embedding groove 37 for the threaded push rods 20 to be embedded, please refer to Fig.11 The end of the threaded push rod 20 and the side wall of the embedding groove 37 are both inclined. The threaded push rod 20 is extended to abut against the side wall of the embedding groove 37 to limit the backward movement of the threaded push rod 20, thereby limiting the backward movement of the joint block 13 and the soil crushing box 12. The hole wall of the through hole on the surface of the joint block 13 is fixedly connected to the limit slider 45. The surface of the threaded push rod 20 is provided with a limit slide groove 21 for the limit slider 45 to slide. The limit slider 45 is used to limit the rotation of the threaded push rod 20, which is beneficial to prevent the threaded push rod 20 from rotating when the threaded sleeve 18 rotates, and the threaded push rod 20 cannot be extended or retracted.

[0043] Furthermore, a second spherical gear 17 is coaxially fixedly connected to the surface of the threaded sleeve 18, and the second spherical gear 17 is rotationally connected to the joint block 13. The inside of the joint block 13 is rotationally connected to the first spherical gear 16, and the first spherical gear 16 and the second spherical gear 17 are meshingly connected. A third motor 15 is fixedly installed on the surface of the joint block 13, and the output end of the third motor 15 is coaxially fixedly connected to the first spherical gear 16. By starting the third motor 15, the first spherical gear 16 is driven to rotate, and the rotation of the first spherical gear 16 drives the second spherical gear 17 to rotate, and the rotation of the second spherical gear 17 causes the threaded sleeve 18 to rotate.

[0044] A soil crushing assembly is provided in the soil crushing box 12, and the soil crushing assembly is used to break up soil clods to prevent the soil clods from agglomerating and being difficult to mix with the improver. A mixing box 31 is fixedly installed at the lower end of the soil crushing box 12, and the inner cavity of the mixing box 31 is communicated with the lower opening of the soil crushing box 12, so that the soil clods in the soil crushing box 12 fall into the mixing box 31 from the lower opening. A storage box 39 is installed on the upper surface of the frame 1, and the storage box 39 has a switchable top plate. By opening the top plate, improver is added to the storage box 39, and the storage box 39 is opened. A reagent delivery pipe 40 is connected between the reagent storage box 39 and the mixing box 31. The reagent delivery pipe 40 communicates with the internal space of the reagent storage box 39 and the mixing box 31, so that the improver can flow from the reagent storage box 39 into the mixing box 31 through the reagent delivery pipe 40. An electric valve 41 is installed inside the reagent delivery pipe 40. By setting the electric valve 41 to switch the pipeline connected to the reagent delivery pipe 40, the improver can be prevented from passing when needed. A mixing component is arranged in the mixing box 31, and the mixing component is used to mix the soil block and the improver;

[0045] By transporting the soil lumps to the soil crushing box 12 for breaking up, the large soil lumps are turned into small soil lumps, which is helpful to prevent the conditioner from having difficulty penetrating into the large soil lumps and preventing the conditioner from being fully mixed with the soil.

[0046] Furthermore, there are multiple soil crushing components, which are evenly spaced in the soil crushing box 12. The soil crushing components include a soil breaking shaft 28 and multiple soil crushing slurries. The multiple soil crushing slurries are evenly spaced and installed on the surface of the soil breaking shaft 28. The surface of the frame 1 is provided with a third slide 36 for the movement of the soil breaking shaft 28. The wall of the third slide 36 does not contact the soil breaking shaft 28 to prevent the soil breaking shaft 28 from rubbing against the inner wall of the third slide 36 when rotating. The soil breaking shaft 28 is rotated to drive the soil crushing slurry to rotate, and the rotating soil crushing slurry breaks up the soil lumps in the soil crushing box 12.

[0047] Furthermore, a fourth bevel gear 27 is coaxially fixedly connected to the top of each earth-breaking shaft 28, and a linkage shaft 25 is rotatably connected to the surface of the combining block 13. A plurality of third bevel gears 26 are coaxially fixedly connected to the surface of the linkage shaft 25, and the number of the third bevel gears 26 corresponds one to one to the number of the fourth bevel gears 27. Each third bevel gear 26 is meshingly connected with a fourth bevel gear 27. The third bevel gear 26 is driven to rotate by rotating the linkage shaft 25, and the rotation of the third bevel gear 26 drives the fourth bevel gear 27 to rotate. The rotation of the fourth bevel gear 27 causes the earth-breaking shaft 28 to rotate. By setting the linkage shaft 25, the third bevel gear 26, and the fourth bevel gear 27, all the soil-breaking components can be operated by rotating the linkage shaft 25, which is conducive to conveniently controlling the start and stop of the soil-breaking components. Since only the rotation of the linkage shaft 25 needs to be controlled, the number of motors required is reduced, thereby reducing the number of electrical equipment such as drivers and controllers in this area, thereby reducing costs.

[0048] The surface of the linkage shaft 25 is coaxially fixedly connected with the second bevel gear 24, the second bevel gear 24 is rotationally connected to the joint block 13, the inside of the joint block 13 is rotationally connected with the first bevel gear 23, the first bevel gear 23 and the second bevel gear 24 are meshingly connected, the surface of the joint block 13 is fixedly connected with the fourth motor 22, the output end of the fourth motor 22 is coaxially fixedly connected with the first bevel gear 23, the first bevel gear 23 is driven to rotate by starting the fourth motor 22, the rotation of the first bevel gear 23 drives the second bevel gear 24 to rotate, the second bevel gear 24 rotates, and the linkage shaft 25 rotates.

[0049] The lower end of the soil crushing box 12 has a plurality of circular openings, and a spiral conveying roller 29 is installed at the lower end of each soil breaking shaft 28. The rotation of the soil breaking shaft 28 can drive the spiral conveying roller 29 to rotate. The rotation of the spiral conveying roller 29 is used to guide the soil blocks to move toward the lower end opening of the soil crushing box 12, so that the soil blocks are moved out of the lower end opening of the soil crushing box 12. The spiral conveying roller 29 is coaxially fixedly connected with the soil breaking shaft 28, so that the rotation of the soil breaking shaft 28 drives the spiral conveying roller 29 to rotate. It is also possible to install a reduction box between the soil breaking shaft 28 and the spiral conveying roller 29, and the rotation of the soil breaking shaft 28 drives the spiral conveying roller 29 to rotate through the gear transmission in the reduction box. The reduction box is used to reduce the rotation speed of the spiral conveying roller 29, so that the rotation speed of the spiral conveying roller 29 is less than the rotation speed of the soil breaking shaft 28. By setting the reduction box, the rotation speed of the spiral conveying roller 29 is reduced, and the movement speed of guiding the soil blocks to move toward the lower end opening of the soil crushing box 12 is slowed down, so that the soil blocks stay in the soil crushing box 12. The time is increased, and the soil blocks are crushed more fully.

[0050] The mixing assembly includes a mixing shaft 30 and a plurality of mixing paddles, which are installed at equal intervals on the surface of the mixing shaft 30. The mixing shaft 30 is installed at the lower end of the spiral conveying roller 29. The rotation of the spiral conveying roller 29 can drive the mixing shaft 30 to rotate, and the ground-breaking shaft 28, the spiral conveying roller 29, and the mixing shaft 30 are driven to rotate in sequence, so that only a fourth motor 22 is needed to drive the ground-breaking shaft 28, the spiral conveying roller 29, and the mixing shaft 30 to rotate together, which is easy to use.

[0051] The bottom of the mixing box 31 is equipped with a switchable discharge plate 32, and the mixing box 31 is rotatably connected to the discharge plate 32. By opening the discharge plate 32, the soil blocks mixed with the improver fall back to the field. Please refer to Figure 4 The rotation axis between the mixing box 31 and the discharge plate 32 is located at the front end. Through such an arrangement, when the discharge plate 32 rotates to open the lower opening of the mixing box 31, the soil blocks in the mixing box 31 are discharged toward the rear of the equipment. A fifth motor 44 is installed on the surface of the mixing box 31. The output end of the fifth motor 44 is fixedly connected to the discharge plate 32. By starting the fifth motor 44, the discharge plate 32 is driven to rotate, thereby controlling the opening of the lower end of the mixing box 31 to open and close the discharge plate 32.

[0052] A combined plate 33 is fixedly connected to the surface of the combined block 13, and each earth-breaking shaft 28 is movable and penetrates the surface of the combined plate 33. By setting the combined plate 33 to connect all the earth-breaking shafts 28, it is convenient for all the earth-breaking shafts 28 to move as a whole with the combined block 13. The surface of the frame 1 is provided with a second slideway 35 for the combined plate 33 to slide back and forth. The upper and lower surfaces of the combined plate 33 are rotatably connected with a rolling shaft 34. The rolling shaft 34 contacts the groove wall of the second slideway 35, which is beneficial to change the sliding friction between the combined plate 33 and the frame 1 into rolling friction, thereby reducing friction and facilitating the combined block 13 and the soil-breaking box 12 to move in coordination with the lifting and lowering of the soil-turning roller 6.

[0053] A protective cover 38 is installed on the top surface of the frame 1. The top of the protective cover 38 has a switchable cover. The protective cover 38 is used to protect the third bevel gear 26 and the fourth bevel gear 27 exposed to the outside.

[0054] The method of improving saline-alkali land with saline-alkali land improvement equipment is as follows: the equipment can be driven to move in the field by traction of a tractor, which is a conventional choice and will not be described in detail here. The first motor 5 is started to drive the soil turning roller 6 to rotate, and then the hydraulic telescopic rod 43 is started to extend, driving the telescopic sleeve 3 and the connecting ring 4 to move downward. The movement of the connecting ring 4 drives the soil turning roller 6 to go deep into the soil to deep-turn the soil layer. When the soil turning roller 6 moves downward, the conveying frame 7 rotates and pulls the soil crushing box 12 to move to the front end. The movement of the soil crushing box 12 simultaneously drives the joint block 13, the soil breaking shaft 28, and the mixing box 31 The movement of the joint block 13 will drive the linkage shaft 25 and the combination plate 33 to move, so that the soil crushing box 12, the linkage shaft 25, the soil breaking shaft 28, the mixing box 31 and the combination plate 33 move at the same time. When the joint block 13 stops, the third motor 15 is started to drive the first flat gear 16 to rotate, the first flat gear 16 rotates to drive the second flat gear 17 to rotate, the second flat gear 17 rotates to drive the threaded sleeve 18 to rotate, the threaded sleeve 18 rotates to extend the two threaded push rods 20 until the ends of the threaded push rods 20 are against the groove wall of the embedded groove 37, thereby limiting the backward movement of the joint block 13.

[0055] When the equipment moves, the soil turned over by the soil-turning roller 6 falls onto the conveyor belt 8, and the soil blocks are transmitted to the soil crushing box 12 by starting the second motor 9, and the first bevel gear 23 is driven to rotate by starting the fourth motor 22. The rotation of the first bevel gear 23 drives the second bevel gear 24 to rotate, and the rotation of the second bevel gear 24 drives the linkage shaft 25 to rotate. The rotation of the linkage shaft 25 drives the third bevel gear 26 to rotate, and the rotation of the third bevel gear 26 drives the fourth bevel gear 27 to rotate, and the rotation of the fourth bevel gear 27 drives the soil-breaking shaft 28 to rotate. The soil-breaking shaft 28 rotates to break the soil blocks in the soil crushing box 12 into smaller soil blocks, and the soil-breaking shaft The rotation of the spiral conveying roller 28 drives the spiral conveying roller 29 to rotate, and the small soil blocks move to the lower end opening of the soil crushing box 12 with the rotation of the spiral conveying roller 29, and fall into the mixing box 31 from the lower end opening. By starting the electric valve 41, the pipeline of the agent delivery pipe 40 is opened, so that the improver in the agent storage box 39 flows into the mixing box 31, and the mixing shaft 30 is driven to rotate by the rotation of the spiral conveying roller 29, so that the small soil blocks in the mixing box 31 are mixed with the improver, and the mixing time does not exceed 10 seconds. Finally, the fifth motor 44 is started to drive the discharge plate 32 to rotate, and the opening at the lower end of the mixing box 31 is opened, so that the small soil blocks in the mixing box 31 fall back onto the field.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A saline-alkali land improvement device, comprising a frame (1) and a soil turning roller (6), characterized in that: The left and right sides of the frame (1) are both equipped with hydraulic telescopic components, the soil turning roller (6) is installed below the frame (1) through the hydraulic telescopic components, the bottom end of the frame (1) is equipped with a soil crushing box (12) that can slide forward and backward, the soil crushing box (12) has a forward opening and a downward opening, the front end of the soil crushing box (12) is rotatably connected to a conveying frame (7), the front end of the conveying frame (7) is rotatably connected to the soil turning roller (6), and a conveyor belt assembly is installed on the conveying frame (7).

2. The saline-alkali land improvement equipment according to claim 1, characterized in that: A joint block (13) is fixedly connected to the top of the soil crushing box (12), a first slideway (14) for the joint block (13) to move forward and backward is provided on the surface of the frame (1), and a stop rod assembly for limiting the joint block (13) from moving backward is installed on the surface of the joint block (13).

3. The saline-alkali land improvement equipment according to claim 1, characterized in that: A soil crushing assembly is arranged in the soil crushing box (12), a mixing box (31) is fixedly installed at the lower end of the soil crushing box (12), the inner cavity of the mixing box (31) is communicated with the opening at the lower end of the soil crushing box (12), and a switchable discharge plate (32) is installed at the bottom of the mixing box (31).

4. The saline-alkali land improvement equipment according to claim 3, characterized in that: A reagent storage box (39) is installed on the upper surface of the frame (1), and a reagent delivery pipe (40) is connected between the reagent storage box (39) and the mixing box (31), and the reagent delivery pipe (40) communicates the internal space of the reagent storage box (39) and the mixing box (31).

5. The saline-alkali land improvement equipment according to claim 4, characterized in that: The soil crushing components are in multiple numbers and are evenly spaced in the soil crushing box (12). The soil crushing components include a soil crushing shaft (28) and multiple soil crushing slurries. The multiple soil crushing slurries are evenly spaced and installed on the surface of the soil crushing shaft (28). The surface of the frame (1) is provided with a third slideway (36) for the soil crushing shaft (28) to move.

6. The saline-alkali land improvement equipment according to claim 5, characterized in that: The top end of each of the earth-breaking shafts (28) is coaxially fixedly connected with a fourth bevel gear (27); the surface of the joint block (13) is rotatably connected with a linkage shaft (25); the surface of the linkage shaft (25) is coaxially fixedly connected with a plurality of third bevel gears (26); the number of the third bevel gears (26) corresponds to the number of the fourth bevel gears (27); and each of the third bevel gears (26) is meshingly connected with a fourth bevel gear (27).

7. The saline-alkali land improvement equipment according to claim 6, characterized in that: A combination plate (33) is fixedly connected to the surface of the joint block (13), each of the earth-breaking shafts (28) movably penetrates the surface of the combination plate (33), and a second slideway (35) for the combination plate (33) to slide forward and backward is provided on the surface of the frame (1).

8. A method for improving saline-alkali land, characterized in that: The saline-alkali land improvement device according to claim 7 is used, and the specific steps are as follows: A. The soil turning roller (6) is rotated, and then the hydraulic telescopic assembly is started to extend, so as to drive the soil turning roller (6) downward into the soil, and then the saline-alkali land improvement equipment is moved to deeply turn the soil layer of the field; B. The conveyor belt assembly transmits the soil turned over by the soil turning roller (6) into the soil crushing box (12), and the soil blocks in the soil crushing box (12) are broken into smaller soil blocks by starting the soil crushing assembly in the soil crushing box (12); C. Small soil lumps fall from the lower opening of the soil crushing box (12) into the mixing box (31), and the improver in the agent storage box (39) flows into the mixing box (31) through the agent delivery pipe (40), and the small soil lumps in the mixing box (31) are mixed with the improver; D. Open the opening at the lower end of the mixing box (31) to allow small pieces of soil mixed with the improver to fall back into the field.

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